Back to Matt for more learning and the next step

Holy shit. That actually worked!

His sister’s stares would’ve just as obvious if she was using a pair of binoculars. The eyes, the squirming, the flushed face. Seeing her look at their own mother at that time was simply arousing. He pressed his hand against his hardening cock, giving it a quick rub to stimulate it.

*I have experienced sexual reproduction, but your species seems to do it for base pleasure as well as for reproduction. More so, it appears your species has specialized in performing it alone. Why is that?*

“You’re asking why I masturbate?” Matt blinked up at his forehead. “Uh, it’s awkward when someone’s around, but you know how it felt, right?”

*You appeared to be distressed at performing that action while I watched. As such, the Ethics of Parasitism required me to shut off my awareness.*

“Well, why not feel it directly?” He hopped into bed and under the covers, beginning to rub his cock some more. “Sense it. Come on, might as well see why I enjoy it so much.”

*Very well.*

It felt odd, having his own eyes looking twice at his body. He had plenty of material to work with from downstairs, his mind beginning to go into the fantasies. His sister lusting over their mother, maybe he’d get his mom to lust after him next. Then he could have his mom order his sister around in exchange for his cock.

*Is it normal for you to think so much during this process?*

“Shuuuut up.” He continued to stroke his cock, closing his eyes. Everyone was different, everyone needed different material to get off. He continued the fantasy, imagining the house becoming a little sex den for them. A perfect incestuous family.

He was getting closer. His mind went more bestial, focusing on imagining his sister licking their mother out, begging and whining for her own cunt to be filled. Like a pump whose valve turned, he began to cum hard. Semen splattered against his briefs and leaking through a little into his pajamas.

His body stiffened and stayed there until he finally entered that post cumming euphoria. He lay back in bed, breathing heavily.

*I comprehend why now.*

“Huh…?”

*Why you do this so often. It is incredibly pleasurable. My own species can’t reach this level of pleasure under most circumstances, but you manage to achieve it multiple times a day.*

“Yeah… yeah.” He tried to steady his breath. “So, help with more?”

*Of course. The Ethics of Parasitism require me to obey requests so long as it doesn’t violate those ethics.*

“Ok, ok.” Matt shook his head. His breathing was slowly getting back under control. He needed another change, but what? He wanted to her to start associating him or his room with sex, that much would help lead to easier thoughts about him, right? He looked around the room, noticing how messy it was since returning from camping. “In, in that case, next one: make my mom get pleasure and arousal from messiness, like my room, yeah?”

*That will take a couple of days.*

“Good… enough…” The college kid closed his eyes and began to nap.

Hey, everyone, I'd like a bit more community voting for this next one. Would you rather I switch to the next few days or give more details of Emily exploring her new fantasies?